I just had it removed last week. I asked my mechanic prior to taking it off what's the use of the resonator and will it affect the car in any manner. My mechanic said the resonator's main function is to reduce the noise of the exhaust, removing it will make the car sound louder. Since we have a pretty big AMG exhaust, it will not be "very" loud.
After I removed the resonator, I noticed the car sounds "deeper", not louder. Pretty close to my ex-CLK430's "V8" sound. I like this non-resonator sound way better than before. I would recommend you to remove it too, John! :p
i say do it, cheapest, best mod i have done thus far. From my understanding no added performance, just a nicer sound. I have however noticed a little bit of a drone in the 2500k-3k RPM, that causes a rattle somewhere in the back seat area.
2005 C55 AMG * Black on Black * Premium Package * Evo Sport underdrive pulley kit * Powerchip * Greenfilters * Llamar 35 Percent tint all the way around with the moleskin inserts *Kenwood DNX8120* H & R Lowering Springs * Eagle F1 GS-D3's * Bi-Xenons * VRP custom exhaust *
I removed the resonator and the secondary cats, but I have a C43. I removed the resonator first and it definitely made it a little louder and deeper tone almost no difference in power. The biggest difference was when I removed the secondary cats..... There was a little extra power, just a little, but the tone of the exhaust was changed to a more throaty less refined tone but only when I really get on it, cruising around 2k-3k it's almost the same as stock but at WOT WOWOWOWOWOWOW the beast is UNLEASHED!!!! I am willing to bet the outcome will be basically the same when removing the resonator or secondary cats on any MB, the sound will change but the power is will remain almost the same. I recommend it to anyone who wants their car to growl not for the guy who's looking to add HP....